Tertiary Butyl Hydroquinone [TBHQ]

Introduction:
A white Crystalline solid having a characteristics odor. It is soluble in alcohol and in ether, but is practically insoluble in water.

Chemical Name:	tert-Butyl Hydroquinone Mono-tert-Butyl Hydroquinone
CAS No. :	1948-33-0
Structural Formula:
Formula wt.:	166.22

Requirements:
Dissolve a few mg of the sample in 1mL of methanol, and add a few drops of a 255 solution of di methyl-amine in water. A pink to red color is produced.

Tests:
Assay	:	not less than 99.0% of C10H14O2
Heavy Metals (as Pb)	:	not more than 10 mg/Kg
Hydroquinone	:	not more than 0.1%
Melting Range	:	Between 126.50°C and 128.50°C
Toluene	:	not more than 0.0025%

Storage:
Store in well-closed container.